209 



with reference to the Carboniferous Limestone was noted. At 

 the now disused lead mine of Langan, portions of the White 

 Sutton Stone were obtained, associated with Galena (Sulphide 

 of Lead) in great abundance. The Brocastle section, of small 

 extent, is chiefly notable as the locality from whence Mr. Moore 

 obtained most of his Lias Corals, since described by Dr. Duncan. 

 These beds everywhere were seen to partake of the Conglomeratic 

 character, which is one of their marked peculiarities. 



On Wednesday (21st) the same party, joined by Dr. Bird, 

 proceeded to the coast via Ogmore, at which point they were 

 joined by Dr. Wright, the Secretary, and the remainder of the 

 Club-contingent ; and the Coast section, from thence by Sutton, 

 Southerndown, and Dunraven, to Truyn-y- witch, was thoroughly 

 and critically examined. 



The conclusions arrived at may be briefly summed up as 

 follows : — The Grey beds forming the so-called Southerndown 

 series immediately underlie the BucMandi beds, and are 

 themselves an abnormal development of the zone of Ammonites 

 angulatus, which fossil is found throughout of all sizes, from 

 that of a crown-piece to that of a small cart wheel. At the 

 base of these beds, immediately above the White Sutton Stone, 

 was found A. Johnstoni, the ribbed representative of Ammonites 

 planorhis, and probably marking the same horizon. The White 

 Sutton beds were considered by the majority of those present to 

 represent the White Lias, though Mr. Moore insisted strongly 

 on their true Liassic character, and was certain he had taken 

 A. angulatus, in situ, out of these beds ; but the most searching 

 investigation failed upon the present occasion to establish that 

 point. 



I have already referred at some length to the conclusions 

 arrived at by Messrs. Bristow and Tate, which fully confirm 

 Mr. Moore's previous views concerning the age and relations of 

 these beds ; but I note that in a paper read by Mr. W. Stoddart 

 before the Geological Society of London, in January of the 

 present year — " Notes on the Lower Lias of Bristol " — he 

 recognizes the Sutton beds in the Gotham Quariy, near Bristol, 

 as situated above the Ammonites Johnstoni beds and the White 



